.coupon-countdown {
    --countdown-bg: rgba(15, 23, 42, 0.08);
    --countdown-border: rgba(15, 23, 42, 0.14);
    --countdown-track: rgba(148, 163, 184, 0.24);
    --countdown-fill-start: #3b82f6;
    --countdown-fill-end: #12b6a6;
    --countdown-text: #0f172a;
    --countdown-muted: #475569;
    margin-top: 10px;
    border-radius: 12px;
    border: 1px solid var(--countdown-border);
    background: var(--countdown-bg);
    padding: 10px 12px;
    text-align: start;
}

.coupon-countdown-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 8px;
}

.coupon-countdown-label {
    color: var(--countdown-muted);
    font-size: 0.78rem;
    font-weight: 700;
}

.coupon-countdown-value {
    display: flex;
    align-items: baseline;
    gap: 5px;
    color: var(--countdown-text);
}

.coupon-countdown-number {
    font-size: 1.22rem;
    font-weight: 900;
    line-height: 1;
}

.coupon-countdown-total {
    font-size: 0.8rem;
    color: var(--countdown-muted);
    font-weight: 700;
}

.coupon-countdown-track {
    width: 100%;
    height: 8px;
    border-radius: 999px;
    background: var(--countdown-track);
    overflow: hidden;
    margin-top: 8px;
}

.coupon-countdown-fill {
    width: 0%;
    height: 100%;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--countdown-fill-start), var(--countdown-fill-end));
    transition: width 700ms cubic-bezier(0.4, 0, 0.2, 1);
}

.coupon-countdown-meta {
    margin-top: 6px;
    display: flex;
    justify-content: space-between;
    color: var(--countdown-muted);
    font-size: 0.74rem;
}

.coupon-countdown.is-low {
    --countdown-fill-start: #f59e0b;
    --countdown-fill-end: #ef4444;
    animation: couponCountPulse 1.8s ease-in-out infinite;
}

@keyframes couponCountPulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(239, 68, 68, 0);
    }
    50% {
        box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.12);
    }
}